Portable power source



FIG. 1 is a front elevation view of a portable power source of our newdesign;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a first perspective view thereof;

FIG. 8 is a second perspective view thereof;

FIG. 9 is a third perspective view thereof;

FIG. 10 is a fourth perspective view thereof; and,

FIG. 11 is a fifth perspective view thereof, with the portable powersource being in use.

CLAIM The ornamental design for a portable power source, as shown anddescribed.